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Bendy Batteries Created That Can Stretch Up to 300%

clock March 1, 2013 00:17 by author Dustin

With Li-Polymer batteries become more mainstream as of 2011-2012, we've seen a change in our how smartphones are being manufactured. Companies can now further edit the structure of the battery, making them thinner than before to please today's consumers. Imagine, then, an even more flexible type of battery; one that can bend up to 300%.

Yonggang Huang, an engineer from Northwestern University, has created just that with the help of John Rogers from the University of Illinois. These stretchable batteries would initially be used in the medical field to help keep track of patients - for example, a heart monitor could be embedded into cardiac tissue.

The researchers were able to create this by placing several individual battery storage components next to each other. These are all connected with wavy wires to ensure that the material can still move around, while the rigidity of the small battery parts themselves help ensures that they don't break.

If this type of technology ever hits the marketplace en masse, we may see it spill over into other electronics, primarily phones, where a varying size of battery would help determine the size of the machine itself.

Source: NBCnews

 



Battery Charging and Energy Capacity Could Increase Tenfold

clock November 30, 2011 01:10 by author Jeremy

A recent groundbreaking study has led to success in increasing charging capacity and speed of lithium ion batteries. Professor Harold Kung and his group of engineers at Northwestern University have accomplished this feat by adjusting graphene layers, which are directly related to how fast charging can occur. Now, charging capcity and speed increase by a factor of ten, just by poking small holes in the battery's graphene layers.

Additionally, Kung's team also increased the density of lithium ions, which allowed for their test-batteries to last for over a week on a single charge. (The science behind it isn't so simple, of course.) The downside is that these lithium-ion batteries lost their fast-charging long-lasting abilities after roughly 150 charges, which is a drastic difference in how long lithium-ion batteries normally last.

If perfected, this science could help create the next generation lithium-ion battery. Check out the source link below for more info.

Source: northwestern.edu



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